Hastelloy® X (UNS N06002)
Hastelloy® X is a high-temperature, nickel - chromium - iron - molybdenum alloy that is celebrated for its exceptional resistance to oxidation and its remarkable mechanical strength at extreme temperatures. Unlike many other superalloys, Hastelloy X is particularly noted for its resistance to stress-corrosion cracking in petrochemical applications. It possesses excellent forming and welding characteristics, making it the primary choice for complex structural components in high-heat environments.
At Aries Alloys, we supply Hastelloy X to the aerospace and industrial heating sectors. Whether it’s for a jet engine combustion chamber or a high-temperature furnace baffle, our material is selected for its ability to maintain its shape and integrity under constant thermal stress up to 2200° F (1200° C).
Exceptional Thermal Attributes
- Superior Oxidation Resistance: Remains stable and resists scaling in temperatures up to 2200° F, outperforming many other nickel-based superalloys.
- Resistance to Carburization & Nitriding: One of the most effective alloys for resisting the absorption of carbon and nitrogen, which can lead to metal embrittlement.
- Excellent Fabricability: Despite its high-temperature strength, it is surprisingly easy to weld and cold-form, allowing for the construction of intricate aerospace parts.
- Stability in All Atmospheres: Performs consistently in oxidizing, reducing, and neutral atmospheres, providing versatility for various industrial furnace types.
- High Creep-Rupture Strength: Engineered to resist deformation under high-stress conditions at elevated temperatures.
Technical Profile & Composition
The Balanced Matrix:
The effectiveness of Hastelloy X comes from its precise balance of Chromium (20.5-23.0%), Iron (17-20%), and Molybdenum (8-10%). This combination creates a matrix that is not only heat-resistant but also incredibly stable over long periods of service, preventing the "sagging" or warping often seen in lesser materials.
Mechanical Capabilities:
- Density: 8.22 g/cm3
- Non-Magnetic: Remains non-magnetic across its entire operating range.
- Ductility: Retains high ductility even after long-term exposure to high temperatures.
- Corrosion Defense: Provides good resistance to aqueous corrosion and is highly resistant to stress-corrosion cracking.
Primary Industry Use Cases
Aries Alloys is a key supplier of Hastelloy X for critical thermal applications:
- Aerospace Propulsion: Combustion cans, transition liners, flame holders, and turbine exhaust components.
- Industrial Furnaces: Retorts, muffles, furnace baffles, and heat-treating equipment.
- Petrochemical Processing: Catalyst grid supports, pyrolysis furnace components, and high-temperature piping.
- Power Generation: Gas turbine components and superheater supports in advanced power cycles.
- Nuclear Engineering: Specialized hardware for high-temperature gas-cooled reactors.
Product Availability at Aries Alloys
We stock and supply Hastelloy X in accordance with ASTM B435, B572, and AMS 5536/5754:
- Sheets & Plates: Ideal for the fabrication of complex furnace liners and aerospace ducting.
- Round Bars: Precision rods for machining high-temperature fasteners and shafts.
- Seamless Tubing: High-purity tubes for process piping and heat exchangers.
- Custom Forgings: Rings and discs tailored for rotating turbine hardware.